I have currently using a ISO file of Command&Conquer-generals,witch works great with Daemon tools.

However, what if i would like to add (or remove) info from that iso file (adding the updates from the EA website for example) ...>>without<< having problems with the protection incorporated in that image.

I have made some initial tries with a few burnerprograms but till now without success.

Any leads (links to articles related to my problem) will be well appreciated